Question

5. The parallel sides of a trapezium are 15 m
and 8 m and the distance between them i
12 m. What is the area of the trapezium ?​

Answer 1

Area of a trapezium

= (1/2)*(sum of its parallel sides)*h

= (1/2)*(8+15)*12

= 6*23

= 138 m^2

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Answer 2

Formula to find the area of trapezium is

$\frac{sum \: of \: parallel \: sides}{2} \times height$

Or

$\frac{a + b}{2} \times h$

Therefore,

$\frac{15 + 8}{2} \times 12$

$= \frac{23}{2} \times 12 \\ = 138$

Hence , Area of trapezium is 138 m square.